Article

The purpose of this study was to assess the effect of a single 60 min TENS
application on sEMG and kinesiographic activity in TMD patients in remission, and
to assess the sEMG and kinesiographic effect of TENS in placebo and untreated
groups. Sixty female subjects, selected according to the inclusion/exclusion
criteria, suffering from unilateral TMD in remission were assigned to one of the
following group: Group TENS, that received a single session of 60 min of TENS;
Group Placebo that received a single session of 60 min of sham TENS; Group
Control, that received no treatment. Pre- and post-treatment differences in sEMG
of TA, MM, SCM, and DA and interocclusal distance values within groups were
tested using the Wilcoxon test. Differences in sEMG and kinesiographic data,
among the three groups, were assessed by Kruskal-Wallis test. Significant
differences were only observed in the TENS group, for masticatory muscles of both
sides; one-way analysis of variance revealed that sEMG values of masticatory
muscles of both sides in the TENS group were significantly reduced, in comparison
with placebo and control groups. Kinesiographic results showed that the vertical
component of the interocclusal distance was significantly increased after TENS
only in the TENS group. TENS could be effective to reduce the sEMG activity of
masticatory muscles and to improve the interocclusal distance of TMD patients in
remission; the placebo effect seems not present in the TENS application.
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Langue : ANGLAIS